Question

The set S represents odd numbers to 31.
S = {1, 3, 5, 7, 9, 11, 13, 15, 17, 21, 23, 25, 27, 29, 31}

The set C represents multiples of 5 to 30.
C = {5, 10, 15, 20, 25, 30}

How many elements are in the set

Answer 1

are in which set

Answer 2

s and c

Answer 3

just count them

Answer 4

S AND C ={5,15,25}
now u can count
AND means common to both 1.e it shoul be a member of both sets

Answer 5

to mean common it means s intersection c set if only the no of elements is asked then it is total elements in both the set

Answer 6

yup